Hardware Setup
Slots
PCIe (Peripheral Component Interconnect Express) Slot
The PCIe slot supports the PCIe interface expansion card.
PCIe x16 Slot
PCIe x1 Slot
PCI (Peripheral Component Interconnect) Slot
The PCI slot supports LAN card, SCSI card, USB card, and other
32-bit PCI Slot
Important
When adding or removing expansion cards, make sure that you unplug the power supply first. Read the documentation for the expansion card to configure any necessary hardware or software settings, such as jumpers, switches or BIOS configuration.
PCI Interrupt Request Routing
IRQ, or interrupt request line, are hardware lines over which devices can send interrupt signals to the microprocessor. The PCI IRQ pins are typically connected to the PCI bus pins as follows:
| Order1 | Order2 | Order3 | Order4 |
PCI Slot1 | INT A# | INT B# | INT C# | INT D# |
PCI Slot2 | INT B# | INT C# | INT D# | INT A# |
PCI Slot3 | INT C# | INT D# | INT A# | INT B# |